class_docstr: Extension of QMatrix4x4 with some helpful methods added.
code: def inverted(self):
      inv, b = QtGui.QMatrix4x4.inverted(self)
      return Transform3D(inv), b
  
file_path: pyqtgraph/pyqtgraph/Transform3D.py
imports: import numpy
  from .None import functions
  from .Qt import QtGui
  from .Vector import Vector
label_desc: Use image node_id 4 for calling the Transform3D obj's underlying member method code with example usage: obj.inverted() and returns: Transform3D,  b